Oil Burners for Heating Boilers Chapter 91 Already Passed

Oil Burners for Heating Boilers Chapter 91 Already Passed Before atomization can occur, heavy oils are heated to approx. a. 203 deg. C b. 95 deg. C c. 115 deg. C d. 75 deg. C e. 150 deg. C b. 95 deg. C The air atomizing oil burner is commonly used on: a. industrial sized boilers b. domestic hot water boilers c. small residential boilers d. larger packaged boilers e. small tubular boilers d. larger packaged boilers Maximum static pressure in a fuel oil line from a fuel tank is approximately: a. 10 kPa b. 15 kPa c. 80 kPa d. 35 kPa e. 70 kPa e. 70 kPa When heat demand is very low, the Two Fixed Capacity Burner system will: a. cycle the primary burner b. cycle the secondary burner c. stop the secondary fuel pump d. close the primary solenoid valve e. close the return valve a. cycle the primary burner The capacity of a constant capacity mechanical atomizer is a function of: a. orifice size b. pump speed c. pump size d. supply pressure e. oil viscosity a. orifice size Out door oil storage tanks are graded away from the pump to: a. increase suction lift b. trap moisture and sediment c. limit head pressure d. assist filling e. provide air entry b. trap moisture and sediment A multi-burner cluster has secondary and tertiary nozzles ignited by: a. an igniter spark b. an intermittent pilot flame c. an interrupted pilot d. the primary burner e. a continuous pilot d. the primary burner A time delay oil valve: a. opens when the pump starts b. opens 5-15 seconds after the